Bioshock 2 entered the UK all-formats chart at number one this week with sales exceeding those of last week's number one Mass Effect 2, making it the biggest release of the year so far.
In turn, Mass Effect 2 was knocked down to eigth position with a decrease of 58 per cent in sales.
Ubisoft's Just Dance remained at number two from last week, and FIFA 10 saw a 53 per cent increase in sales elevate it to number three following price promotions at retail.
Call of Duty: Modern Warfare 2 slipped from three to four, and Dante's Inferno dropped from four to nine.
Moving in the opposite direction was SEGA's Bayonetta, which rose from 38 to number 10.
The full Chart-Track UK top 20 is as follows:
- 01 Bioshock 2
- 02 Just Dance
- 03 FIFA 10
- 04 Call of Duty: Modern Warfare 2
- 05 Wii Sports Resort
- 06 New Super Mario Bros Wii
- 07 Wii Fit Plus
- 08 Mass Effect 2
- 09 Dante's Inferno
- 10 Bayonetta
- 11 Mario & Sonic at the Olympic Winter Games
- 12 James Cameron's Avatar: The Game
- 13 Army of Two: The 40th Day
- 14 Madden NFL 10
- 15 Mario Kart Wii
- 16 Forza Motorsport 3
- 17 LEGO Batman: The Videogame
- 18 Peppa Pig: The Game
- 19 Assassin's Creed II
- 20 Grand Theft Auto IV